Segment Information (Tables)

3 Months Ended

Mar. 31, 2013

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment [Table Text Block]

The following table sets forth the Company's North American & European Operations and Australian Operations for the three months ended March 31, 2013 and 2012 (dollars in thousands):

	Three Months Ended March 31, 2013									Three Months Ended March 31, 2012
	North American & European Operations			Australian Operations			Total Operations			North American & European Operations			Australian Operations			Total Operations
Operating revenues	$	299,095		$	76,113		$	375,208		$	144,073		$	63,363		$	207,436
Income from operations	54,794			21,406			76,200			31,313			10,001			41,314
Depreciation and amortization	27,411			6,812			34,223			12,318			5,315			17,633
Interest expense	(15,811		)	(4,309		)	(20,120		)	(4,765		)	(3,851		)	(8,616		)
Interest income	888			155			1,043			805			62			867
Benefit from/(provision for) income taxes	30,049			(5,117		)	24,932			(10,539		)	(1,766		)	(12,305		)
Expenditures for additions to property & equipment, net of grants from outside parties	14,711			18,842			33,553			12,804			29,077			41,881

Property and Equipment by Segment [Table Text Block]

The following table sets forth the property and equipment recorded in the consolidated balance sheets for the Company's North American & European Operations and Australian Operations as of March 31, 2013 and December 31, 2012 (dollars in thousands):

	March 31, 2013			December 31, 2012
	North American & European Operations	Australian Operations	Total Operations	North American & European Operations	Australian Operations	Total Operations
Property & equipment, net	$2,760,992	$638,612	$3,399,604	$2,766,693	$629,602	$3,396,295